The 6 tune musical box is of course not made by J. Bognard; it is
made by PVF which is short for Paillard-Vaucher et fils.  J. Bognard
is the name of the printer in Paris who printed the tune sheet.

A tune sheet printed by J Bognard for a 6-air musical box also made
by PVF is reproduced as tune sheet No. 207 in the book called "Musical
Box Tune Sheets", by H.A.V. Bulleid, published by the Musical Box
Society of Great Britain (MBSGB).

Noel H Gale